float iTime = 0.0;
vec2 iResolution = vec2(1.0, 1.0);
vec4 iMouse = vec4(0.0);

void SToyInit(float inTime, vec2 inResolution){
    iTime = inTime;
    iResolution = inResolution;
}
void SToyInit(float inTime, vec2 inResolution, vec2 inMouse){
    iTime = inTime;
    iResolution = inResolution;
    iMouse.xy = inMouse;
}
vec2 SToyFragCoord(vec2 inUV, vec2 inResolution){
    return inUV * inResolution;
}

